<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>放大镜案例实现</title>
    <script>
    </script>
</head>
<!-- 编写HTML代码  图片预览区域 -->

<body>
    <div class="previve_img">
        <!-- 图片 -->
        <img src="phone.png" alt="">
        <!-- 放大镜 -->
        <div class="mask"></div>
    </div>

</body>

</html>